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Subject: Re: [topicmaps-comment] Occurrences of associations?
In message <E907B9F5-3894-48EE-AB3E-13158BCC7A4B@garshol.priv.no>, Lars Marius Garshol <larsga@garshol.priv.no> writes > >Hi Richard and Roger, > >This list is not much used any more. You may find TOPICMAPMAIL at >InfoLoom more active. Thanks: I have already signed up for this list, thanks to a mail from Michel Biezunski. >This is reification, and in XTM 1.0 you do it as follows: > > <association id="myassoc"> > ... > </association> > > <topic id="assoctopic"> > <subjectIdentity> > <subjectIndicatorRef xlink:href="#myassoc"/> > ... I see that in the XTM 2.0 draft, Associations no longer have an id attribute. However, they have a new reifier attribute, which is meant to point to the reifying topic. Does this mean that the "reified construct - reifier" link works in the opposite direction in XTM 2.0? Is it encoded something like this: <association reifier="#assoctopic"> <itemIdentity href="myassoc"/> ... </association> <topic id="assoctopic"> <subjectIdentifier href="#myassoc"/> ... </topic> ? If so, what is the relationship between <subjectIdentifier> in XTM 2.0 (which I assume takes the place of <subjectIdentity> in your code above) and this reverse link? Can either be inferred from the presence of the other, or are their semantics different? Richard -- Richard Light SGML/XML and Museum Information Consultancy richard@light.demon.co.uk
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